Johnny Lee does it again..... this time he uses the WiiRemote to do head-tracking. The results are awesome. The video is a must see to see how realistic 3D environments can be made using head-tracking.
Head tracking - is where hardware is used to detect the person's head relative to the display. Tracking the head - lets the software know where the user is looking and hence can change the display - thereby giving the user a 3D view into a 2D display. Check out the video and it will all make sense!
link to Johnny Lee's web page: http://www.cs.cmu.edu/~johnny/projects/wii/
link to Johnny Lee's blog: http://procrastineering.blogspot.com/